Process and device for generating synchronizing signals in an op

Details Process and device for generating synchronizing signals in an op Process and device for generating synchronizing signals in an op

1983-03-09

1986-01-21

Richardson, Robert L.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369 48, 360 39, 360 41, G11B 700, G11B 2700

Patent

active

045660921

ABSTRACT:
Process for generating synchronizing signals used for writing and/or reading recorded digital data or recording on an optical data carrier, in which the synchronizing signals are obtained from basic clock signals regenerated in phase with the aid of the determination of the phase shift of a specific pulse relative to the clock signal. According to a preferred variant, the specific data and the useful information data are coded according to the NRZ code. The specific data are associated with pulse times not used in the NRZ code for the recording of the information data. The synchronizing signals generated on the basis of the reading of these flags can then be used for writing during the information data recording phases.

REFERENCES:
patent: 3961315 (1976-06-01), Yokoyama
Electronique, No. 272, Sep. 1979, Paris (FR), M. Astier et al.

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